Carrier-backed mobile payments initiative Isis is gearing up support for its mobile wallet platform ahead of the nationwide launch later this year. Today, Isis is For those of us on Verizon, we’re stuck with Isis Wallet, which only accepts twp cards (Chase and Amex), so those of us who want to tie a debit card to use as a credit card are out of luck. Verizon, if you’re going to force us to use something, please make sure we can use it.